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  • Creating iPhoto albums using Cocoa Scripting Bridge

    - by robinjam
    I'm tearing my hair out trying to create a new album from a Cocoa Application. In applescript it's a nice simple procedure: tell application "iPhoto" new album name "Album" end tell But I can't work out how this is done in Cocoa via the Scripting Bridge. I've tried this: iPhotoApplication *iPhoto = [SBApplication applicationWithBundleIdentifier:@"com.apple.iPhoto"]; iPhotoAlbum *newAlbum = [[[[iPhoto classForScriptingClass:@"album"] alloc] initWithProperties:[NSDictionary dictionaryWithObject:@"Album" forKey:@"name"]] autorelease]; [[iPhoto albums] addObject:newAlbum]; But that had no effect. Please help!

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  • Combining Cocoa and MySQL

    - by BryCry
    Hey guys, i was searching SO for help on this, but i can't seem to find a concrete solution. Is, or isn't it possible to connect to a mysql database with Cocoa? Because i'm working on a program that i'd like to extend to a database, but i sure as hell don't know how! I mean, that cocoa-mysql package is heavily outdated, and i dont even know what a C wrapper is! Can someone please tell me how to do this, or atleast burst my bubble to tell me that it can't be done? Thanks!

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  • Proper design a Model-Controller in Cocoa?

    - by legege
    Hi, I'm trying to design a simple Cocoa application and I would like to have a clear and easy to understand software architecture. Of course, I'm using a basic MVC design and my question concerns the Model layer. For my application, the Model represents data fetched on the Internet with a XML-RPC API. I'm planning to use Core Data to represent a locally fetched version. How should the data be loaded initially? I'm reading the Cocoa Design Pattern book, and they talk about a Model-Controller that is centric to the Model. How would that be done? Thanks!

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  • Cocoa Bindings in the face of a million of items in an NSArray

    - by François Beausoleil
    I'm writing a GUI for MongoDB using Cocoa. It's going well, but I don't know how to make KVO properties that would be lazily loaded. How does one handle that? For instance, viewing the documents in a Mongo collection. The collection might have a million items in it. I suspect I shouldn't be downloading the full 2-5 GiB of data to my Cocoa app, then format and display 20 rows. How does one implement that? I called my project Mongo Explorer, available on GitHub. Specifically, how would I code MECollection#reload to be lazy? Do I need to implement a data source delegate for my NSTableView?

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  • authorization services question cocoa

    - by Marius
    Sorry for being a total beginner in cocoa and for asking the following stupid question, but it's too confusing for me to google it myself or maybe i'm just missing something. I need to run a shellscript with elevated privileges in cocoa. As i understand, "AuthorizationExecuteWithPrivileges" is the correct way to do it. So i've created an application and tried to use some code from one example i found online. The problem is ... if i understand it correctly ... there should be a Security framework in /System/Library/Frameworks that i have to import to the project, but ... it's not there. What am i missing here? Thank you.

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  • How can I set the Rails environment for my somewhat stand alone Ruby script?

    - by Nick
    I have a Ruby script in my Rails app that I use to load some data from Twitter. In the future I will make it an automatic background process, but for now I run it manually like: ruby /lib/twitter/twitterLoad.rb In order to use the Rails model classes and such, I have the following as the top line of the script: require "#{File.dirname(__FILE__)}/../../config/environment.rb" By default, the development environment is used. But, I'd like to be able to choose the production environment at some point. Update #1: The RAILS_ENV constant is getting set in the environment.rb file. So, I was able to put ENV['RAILS_ENV'] = 'production' at the very top (before the environment.rb) line and solve my problem somewhat. So, my new question is, can do pass in env vars through the command line?

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  • What's a good way to set up a development environment on OS X for ruby, rails, and git?

    - by Ein2015
    I'm going to start development on a web app using ruby, rails, probably either postgres or mysql, and most likely apache. I'll be using a git repository with the master repo on another server. I've searched through stackoverflow and done some Googling... so here's what I have so far... What are your opinions on what's described on this page?: http://robots.thoughtbot.com/post/159805668/2009-rubyists-guide-to-a-mac-os-x-development What about this one?: http://www.buildingwebapps.com/articles/79197-setting-up-rails-on-leopard-mac I don't need helping finding an editor, there's plenty out there (TextMate, TextWrangler, MacVim), but I do need help to make sure I'm setting things up correctly to code, build, and run the web app from my mac. Here's a specific set of scenarios I could use some help on: Testing various versions of rails and/or ruby. Testing performance, vulnerabilities, monitoring queries, etc. Testing different versions of gems. Working on other projects on this same machine.

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  • Ruby Koans 202: Why does the correct answer give a syntax error?

    - by hlh
    I'm working through the about_classes.rb file in the Ruby Koans, and have hit a brick wall with the "inside_a_method_self_refers_to_the_containing_object" test. Here's the code: class Dog7 attr_reader :name def initialize(initial_name) @name = initial_name end def get_self self end def to_s __ end def inspect "<Dog named '#{name}'>" end end def test_inside_a_method_self_refers_to_the_containing_object fido = Dog7.new("Fido") fidos_self = fido.get_self assert_equal <Dog named 'Fido'>, fidos_self end So, I'm trying to make the first half of the assert_equal evaluate to the second half (fidos_self). When I work it out in irb, fidos_self returns <Dog named 'Fido'>, but I keep receiving a syntax error for that answer. I've seen this similar post: Ruby Koans: Where are the quotes in this return value?, but his solution (putting fido instead of <Dog named 'Fido'>) causes my rake to abort, saying the stack level is too deep. This is driving me nuts. What am I missing here?

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  • How does ruby allow a method and a Class with the same name?

    - by Daniel Beardsley
    I happened to be working on a Singleton class in ruby and just remembered the way it works in factory_girl. They worked it out so you can use both the long way Factory.create(...) and the short way Factory(...) I thought about it and was curious to see how they made the class Factory also behave like a method. They simply used Factory twice like so: def Factory (args) ... end class Factory ... end My Question is: How does ruby accomplish this? and Is there danger in using this seemingly quirky pattern?

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  • Passenger: "Missing these required gems redgreen"

    - by Michael Stum
    Hello, total ruby newbie, trying to setup a Rails/MongoDB application on Mac OS X Snow leopard. Installed Ruby 1.9.1 and RubyGems 1.3.7, which ruby and which gem point to the same directory. I'm using the Snow Leopard built-in apache and Passenger 2.2.11. I'm using the rails template from the mongo-site which seems to work okay overall. The exact error that passenger gives me is: /Users/User/Sites/feuerapp/vendor/rails/railties/lib/rails/gem_dependency.rb:119:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010. Use #requirement **Notice: C extension not loaded. This is required for optimum MongoDB Ruby driver performance. You can install the extension as follows: gem install bson_ext If you continue to receive this message after installing, make sure that the bson_ext gem is in your load path and that the bson_ext and mongo gems are of the same version. Missing these required gems: redgreen You're running: ruby 1.9.1.376 at /usr/local/bin/ruby rubygems 1.3.7 at /Users/User/.gem/ruby/1.9.1, /usr/local/lib/ruby/gems/1.9.1 Runrake gems:installto install the missing gems. The weird thing is that redgreen is installed and looks fine to me: Dahlia:feuerapp User$ ls -la vendor/gems/ total 0 drwxr-xr-x 7 User staff 238 May 18 22:56 . drwxr-xr-x 5 User staff 170 May 18 23:00 .. drwxr-xr-x 11 User staff 374 May 18 22:56 factory_girl-1.2.4 drwxr-xr-x 11 User staff 374 May 18 22:56 mocha-0.9.8 drwxr-xr-x 7 User staff 238 May 18 22:56 mongo_mapper-0.7.6 drwxr-xr-x 7 User staff 238 May 18 22:56 redgreen-1.2.2 drwxr-xr-x 11 User staff 374 May 18 22:56 shoulda-2.10.3 Commenting out this line in environment.rb "solves" the issue, but that's not really want I want: config.gem 'redgreen' I don't understand anything of gems yet, but from my limited understanding, redgreen should be there and found?

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  • How do I fix my Ruby installation

    - by Robin Fisher
    Hi all, I rather cleverly (or not in hindsight) installed RVM, which kept hanging whilst compiling Rubies. I have removed the .rvm directory but now my system has reverted to Ruby 1.8.7 i.e. when I type: ruby -v which ruby they both point to 1.8.7. How do I get the ruby command to point to my 1.9.1 installation, which is located in /usr/local/lib/ruby/1.9.1? I'm on OSX 10.6. Thanks Robin

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  • Advantages of Java over Ruby/JRuby

    - by Webbisshh
    I am learning Java. I have learned and used Ruby. The Ruby books always tell the advantages of Ruby over Java. But there must be some advantages, that's why lots of people (especially companies) use Java and not Ruby. Please tell the absolute(not philosophical!) advantages of Java over Ruby.

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  • no such file to load -- ruby-mbox (LoadError)

    - by Phil M
    sudo gem install ruby-mbox then I run this require "rubygems" require "ruby-mbox" mbox = Mbox.new("Inbox") and I get this $ ruby mbox_read.rb /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- ruby-mbox (LoadError) from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from mbox_read.rb:2 gem server says this ruby-mbox 0.0.2 [rdoc] [www] A simple library to read mbox files. Executables are mbox-daemon, mbox-do. Thanks in advance

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  • Ruby 1.8.7 and RSPEC tutorial

    - by Ben Nelson
    I'm just diving into ruby development for a class assignment and the machines at my Uni have only got ruby 1.8.7 on them so I need to develop for that. I have found tutorials on the web for ruby = 1.9 and rspec that are really good but I haven't found anything for ruby 1.8.7 (I'm guessing it's pretty dated?). Does anyone have anything using rspec testing and has an indepth discussion on ruby 1.8.7 for me? I'd really appreciate it! Thanks!

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  • 500 error with deploying rails application via apache2+passenger

    - by user1633983
    I finally completed my own app, so the only work left is deploying the app. I'm using Ubuntu 10.04 and apache2(installed by apt-get), so I'm trying to deploy through passenger. I installed passenger gem like this: sudo gem install passenger rvmsudo passenger-install-apache2-module and I configured apache settings as what the installation message says. I added below lines in the middle of /etc/apache2/apache2.conf file. LoadModule passenger_module /home/admin/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.17/ext/apache2/mod_passenger.so PassengerRoot /home/admin/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.17 PassengerRuby /home/admin/.rvm/wrappers/ruby-1.9.3-p194/ruby and, I appended below lines in /etc/apache2/sites-available/default file. <VirtualHost *:80> ServerName localhost # !!! Be sure to point DocumentRoot to 'public'! DocumentRoot /home/admin/homepage/public <Directory /home/admin/homepage/public> # This relaxes Apache security settings. AllowOverride all # MultiViews must be turned off. Options -MultiViews </Directory> But when I restart the apache service and hit the address, 500 error occurs. At first, it was same 500 error but the 500 error page is from apache's, but when I reinstalled the libapache2-module-passenger, the 500 error page is changed to that from rails'. Because of rails' 500 error page(which is located at public/500.html), I think passenger module is properly connected with apache. What should I do to fix this problem? Do I need to configure something inside my app before deployment?

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  • File bug for iPhone SDK

    - by leolobato
    Hello guys, How exactly filling bugs for the iPhone SDK with Apple works? I've always seen people mentioning we should fill bugs and duplicates is their way of measuring priority, but it's not clear to me: How to actually fill the bug; How to flag someone else's bug as a duplicate, and; What do I need to tell people I've filled that bug and they should help me get it fixed by posting duplicates, if they're interested. I couldn't find this process detailed anywhere - just snippets of information, so I figure you guys could help me (and all other developers fresh in Cocoa / Cocoa-touch development) by detailing it here. Thanks!

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  • NSTableView doesn't populate with array objects until a new object is added via the controller

    - by Luke
    I have an NSTableView and an array controller set up as shown here, using cocoa bindings: https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/TableView/PopulatingViewTablesWithBindings/PopulatingView-TablesWithBindings.html#//apple_ref/doc/uid/10000026i-CH13-SW3 In my app delegate during applicationDidFinishLaunching I have the following snippet in here, initialising the array and filling it with objects array = [[NSMutableArray alloc] init]; SomeObject* foo = [[Object alloc] init]; foo.text = @"sup"; [array addObject:foo]; //Repeat this a few times However, when I build the app and run it I end up with an empty table. However, if I bind a button to the array controller's add: input and click it during runtime (this adds a new object to the array and table) then the table will show the new object first, with the objects added during applicationDidFinishLaunching following it. Why does this happen? And is there a way to make my table populate without having to add an element first?

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  • How can I run Ruby specs and/or tests in MacVim without locking up MacVim?

    - by Henry
    About 6 months ago I switched from TextMate to MacVim for all of my development work, which primarily consists of coding in Ruby, Ruby on Rails and JavaScript. With TextMate, whenever I needed to run a spec or a test, I could just command+R on the test or spec file and another window would open and the results would be displayed with the 'pretty' format applied. If the spec or test was a lengthy one, I could just continue working with the codebase since the test/spec was running in a separate process/window. After the test ran, I could click through the results directly to the corresponding line in the spec file. Tim Pope's excellent rails.vim plugin comes very close to emulating this behavior within the MacVim environment. Running :Rake when the current buffer is a test or spec runs the file then splits the buffer to display the results. You can navigate through the results and key through to the corresponding spot in the file. The problem with the rails.vim approach is that it locks up the MacVim window while the test runs. This can be an issue with big apps that might have a lot of setup/teardown built into the tests. Also, the visual red/green html results that TextMate displays (via --format pretty, I'm assuming) is a bit easier to scan than the split window. This guy came close about 18 mos ago: http://cassiomarques.wordpress.com/2009/01/09/running-rspec-files-from-vim-showing-the-results-in-firefox/ The script he has worked with a bit of hacking, but the tests still ran within MacVim and locked up the current window. Any ideas on how to fully replicate the TextMate behavior described above in MacVim? Thanks!

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  • Cocoa equivalent of the Carbon method getPtrSize

    - by Michael Minerva
    I need to translate the a carbon method into cocoa into and I am having trouble finding any documentation about what the carbon method getPtrSize really does. From the code I am translating it seems that it returns the byte representation of an image but that doesn't really match up with the name. Could someone give me a good explanation of this method or link me to some documentation that describes it. The code I am translating is in a common lisp implementation called MCL that has a bridge to carbon (I am translating into CCL which is a common lisp implementation with a Cocoa bridge). Here is the MCL code (#_before a method call means that it is a carbon method): (defmethod COPY-CONTENT-INTO ((Source inflatable-icon) (Destination inflatable-icon)) ;; check for size compatibility to avoid disaster (unless (and (= (rows Source) (rows Destination)) (= (columns Source) (columns Destination)) (= (#_getPtrSize (image Source)) (#_getPtrSize (image Destination)))) (error "cannot copy content of source into destination inflatable icon: incompatible sizes")) ;; given that they are the same size only copy content (setf (is-upright Destination) (is-upright Source)) (setf (height Destination) (height Source)) (setf (dz Destination) (dz Source)) (setf (surfaces Destination) (surfaces Source)) (setf (distance Destination) (distance Source)) ;; arrays (noise-map Source) ;; accessor makes array if needed (noise-map Destination) ;; ;; accessor makes array if needed (dotimes (Row (rows Source)) (dotimes (Column (columns Source)) (setf (aref (noise-map Destination) Row Column) (aref (noise-map Source) Row Column)) (setf (aref (altitudes Destination) Row Column) (aref (altitudes Source) Row Column)))) (setf (connectors Destination) (mapcar #'copy-instance (connectors Source))) (setf (visible-alpha-threshold Destination) (visible-alpha-threshold Source)) ;; copy Image: slow byte copy (dotimes (I (#_getPtrSize (image Source))) (%put-byte (image Destination) (%get-byte (image Source) i) i)) ;; flat texture optimization: do not copy texture-id -> destination should get its own texture id from OpenGL (setf (is-flat Destination) (is-flat Source)) ;; do not compile flat textures: the display list overhead slows things down by about 2x (setf (auto-compile Destination) (not (is-flat Source))) ;; to make change visible we have to reset the compiled flag (setf (is-compiled Destination) nil))

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  • therubyracer on Ubuntu install issues with ruby-2.0.0-p247

    - by Victor S
    I can't seem to get therubyracer gem installed on ubuntu, i get the following errors, anyone can help? ERROR: Error installing therubyracer: ERROR: Failed to build gem native extension. /home/victorstan/.rvm/rubies/ruby-2.0.0-p247/bin/ruby extconf.rb checking for main() in -lpthread... yes creating Makefile make compiling constraints.cc compiling array.cc compiling value.cc compiling invocation.cc compiling primitive.cc compiling trycatch.cc compiling context.cc compiling exception.cc compiling template.cc compiling accessor.cc compiling object.cc compiling script.cc compiling external.cc compiling stack.cc compiling gc.cc compiling backref.cc compiling heap.cc compiling v8.cc compiling constants.cc compiling date.cc compiling function.cc compiling rr.cc compiling message.cc compiling init.cc compiling string.cc compiling handles.cc compiling signature.cc compiling locker.cc linking shared-object v8/init.so g++: /home/victorstan/.rvm/gems/ruby-2.0.0-p247@global/gems/libv8-3.11.8.17-x86_64-linux/vendor/v8/out/ia32.release/obj.target/tools/gyp/libv8_base.a: No such file or directory g++: /home/victorstan/.rvm/gems/ruby-2.0.0-p247@global/gems/libv8-3.11.8.17-x86_64-linux/vendor/v8/out/ia32.release/obj.target/tools/gyp/libv8_snapshot.a: No such file or directory make: *** [init.so] Error 1 Update It seems it's trying to use a 32 bit library instead of a 64 bit library, anyone else experience issue trying to install 64 bit applications and packages on Ubuntu, and it trying to install 32 bit version instead (even though the system is a 64 Linux)? Related: https://github.com/cowboyd/therubyracer/issues/262

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  • Cannot install Curb gem on Netbeans 6.9 R2

    - by Zeck
    Hi guys, I'm trying to install feedzirra. When i install curb on my netbeans i get following errors. Building native extensions. This could take a while... ERROR: Error installing curb-0.7.6.gem: ERROR: Failed to build gem native extension. "C:/Program Files/NetBeans 6.9 RC2/ruby/jruby-1.5.0/bin/jruby.bat.exe" extconf.rb '"C:/Program Files/NetBeans 6.9 RC2/ruby/jruby-1.5.0/bin/jruby.bat.exe"' is not recognized as an internal or external command, operable program or batch file. Gem files will remain installed in C:/Program Files/NetBeans 6.9 RC2/ruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/curb-0.7.6 for inspection. Results logged to C:/Program Files/NetBeans 6.9 RC2/ruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/curb-0.7.6/ext/gem_make.out Any ideas how I can get this to work? Or did you know very fast feed parser gem?

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  • DRY Authenticated Tasks in Cocoa (with distributed objects)

    - by arbales
    I'm kind of surprise/infuriated that the only way for me to run an authenticated task, like perhaps sudo gem install shi*t, is to make a tool with pre-written code. I'm writing a MacRuby application, which doesn't seem to expose the KAuthorization* constants/methods. So.. I learned Cocoa and Objective-C. My application creates a object, serves it and calls the a tool that elevates itself and then performs a selector on a distributed object (in the tool's thread). I hoped that the distributed object's methods would evaluated inside the tool, so I could use delegation to create "privileged" tasks. If this won't work, don't try to save it, I just want a DRY/cocoa solution. AuthHelper.m //AuthorizationExecuteWithPrivileges of this. AuthResponder* my_responder = [AuthResponder sharedResponder]; // Gets the proxy object (and it's delegate) NSString *selector = [NSString stringWithUTF8String:argv[3]]; NSLog(@"Performing selector: %@", selector); setuid(0); if ([[my_responder delegate] respondsToSelector:NSSelectorFromString(selector)]){ [[my_responder delegate] performSelectorOnMainThread:NSSelectorFromString(selector) withObject:nil waitUntilDone:YES]; } RandomController.m - (void)awakeFromNib { helperToolPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingString:@"/AuthHelper"]; delegatePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingString:@"/ABExtensions.rb"]; AuthResponder* my_responder = [AuthResponder initAsService]; [my_responder setDelegate:self]; } -(oneway void)install_gems{ NSArray *args = [NSArray arrayWithObjects: @"gem", @"install", @"sinatra", nil]; [NSTask launchedTaskWithLaunchPath:@"/usr/bin/sudo" arguments:args]; NSLog(@"Ran AuthResponder.delegate.install_gems"); // This prints. } ... other privileges tasks. "sudo gem update --system" for one. I'm guessing the proxy object is performing the selector in it's own thread, but I want the current (privileged thread) to do it so I can use sudo. Can I force the distributed object to evaluate the selector on the tool's thread? How else can I accomplish this dryly/cocoaly?

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